Syringe barrel



FIG. 1 is a front perspective view;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a right side view;

FIG. 5 is a left side view;

FIG. 6 is a top view; and,

FIG. 7 is a bottom view.

The broken, lines show portions of the design that form no part of the claimed design. 

CLAIM The ornamental design for a syringe barrel, as shown and described. 